In statistics, the standard deviation is a measure that is used to quantify the
amount of variation or dispersion of a set of data values. A low standard deviation
The Standard Deviation is a measure of how spread out numbers are. Its symbol
is σ (the greek letter sigma). The formula is easy: it is the square root of the ...
A simpler explanation of standard deviation, written by a former math-major-
turned-journalist who likes to explain math to people don't understand or just
Review of what we've learned. Introduction to the standard deviation.
Standard Deviation (SD) is the measure of spread of the numbers in a set of data
from its mean value. Also called as SD, Standard Deviations symbol σ (sigma).
1. A measure of the dispersion of a set of data from its mean. The more spread
apart the data, the higher the deviation. Standard deviation is calculated as the ...
Physical scientists often use the term root-mean-square as a synonym for
standard deviation when they refer to the square root of the mean squared
deviation of ...
The variance and the closely-related standard deviation are measures of how
spread out a distribution is. In other words, they are measures of variability.
A guide on the standard deviation including when and how to use the standard
deviation and examples of its use.
Free online tool to calculate the standard deviation, variance, mean, sum, and
confidence range for given numbers. Also find hundreds of other free online ...